Potassium hydroxide - Anhydrous Grade, ≥99.95% metals basis , CAS No.1310-58-3

CAS: 1310-58-3 Cat. No.: P431767 Formula: KOH Molecular Weight: 56.11 EC Number: 215-181-3

GRADE & PURITY Anhydrous Grade, ≥99.95% metals basis

Synonyms

potasio hidroxido | KALI CAUSTICUM [HPUS] | Potassium hydroxide solution 10% (wt/v) in methanol | POTASSIUM HYDROXIDE | potassium -hydroxide | UN1814 | POTASSIUM HYDROXIDE [WHO-DD] | Potassium hydroxide, pellets, Trace Metals Grade 99.95% | INS NO.525 | K

Storage

Room temperature,Desiccated

Shipped In

FedEx DG Service

Overview

Potassium hydroxide (KOH) is also known as caustic potash. It is a strong alkali or a solid base compound that can be used in a variety of industrial applications. It finds its usage in the production of soaps, cleaners and detergents.

Specifications

Synonyms

potasio hidroxido | KALI CAUSTICUM [HPUS] | Potassium hydroxide solution 10% (wt/v) in methanol | POTASSIUM HYDROXIDE | potassium -hydroxide | UN1814 | POTASSIUM HYDROXIDE [WHO-DD] | Potassium hydroxide, pellets, Trace Metals Grade 99.95% | INS NO.525 | K

Specifications & Purity

Anhydrous Grade, ≥99.95% metals basis

Storage

Room temperature,Desiccated

Shipped In

FedEx DG Service

Grade

Anhydrous Grade

Purity

≥99.95% metals basis

Names and Identifiers

• Canonical Smiles: [OH-].[K+]
• IUPAC Name: potassium;hydroxide
• InChIKey: KWYUFKZDYYNOTN-UHFFFAOYSA-M
• INCHI: 1S/K.H2O/h;1H2/q+1;/p-1
• Isomeric SMILES: [OH-].[K+]
• WGK Germany: 1
• UN Number: UN 1814
• Packing Group: II
• Molecular Weight: 56.11
• Reaxy-Rn: 11342937
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=11342937&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Mixed metal/non-metal compounds
    • Class Alkali metal oxoanionic compounds
      • Subclass Alkali metal hydroxides

• Kingdom: Inorganic compounds
• Superclass: Mixed metal/non-metal compounds
• Class: Alkali metal oxoanionic compounds
• Subclass: Alkali metal hydroxides
• Intermediate Tree Nodes: Not available
• Direct Parent: Alkali metal hydroxides
• Alternative Parents: Inorganic salts Inorganic oxides Inorganic hydrides
• Molecular Framework: Not available
• Substituents: Alkali metal hydroxide - Inorganic hydride - Inorganic oxide - Inorganic salt
• Description: This compound belongs to the class of inorganic compounds known as alkali metal hydroxides. These are inorganic compounds in which the largest oxoanion is hydroxide, and in which the heaviest atom not in an oxoanion is an alkali metal.
• External Descriptors: alkali metal hydroxide

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: H2O: soluble 1120g/L
• Boil Point(°C): 1324 °C
• Melt Point(°C): 380°C
• Molecular Weight: 56.106 g/mol
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 0
• Exact Mass: 55.9664 Da
• Monoisotopic Mass: 55.9664 Da
• Topological Polar Surface Area: 1.000 Ų
• Heavy Atom Count: 2
• Formal Charge: 0
• Complexity: 2.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 2

XLogP3

Frequently Asked Questions

What does the trace-metals specification mean?

This product is specified at ≥99.95% on a trace-metals basis. That figure describes metallic impurity content rather than overall chemical assay, so it is the relevant specification for ICP-MS, semiconductor and battery applications. Lot-specific values are stated on the Certificate of Analysis.

What does Anhydrous Grade mean?

Anhydrous Grade indicates that the material has been processed and tested for moisture-sensitive chemistry. Specifications focus on the impurities that affect performance in that application — for example, metal content for electronics, particle size for batteries, refractive index for optics, or moisture content for moisture-sensitive processes.

How should this product be stored?

Store in a cool place, desiccated. Keep the container tightly closed with desiccant — the material is moisture-sensitive.

How is this product shipped?

This product is classified as dangerous goods and ships via FedEx DG Service. Ground and other economy services are not available, and delivery to some destinations or address types may be restricted.

What are the CAS number, molecular formula and molecular weight?

The CAS Number is 1310-58-3, the molecular formula is KOH, and the molecular weight is 56.11 g/mol. InChIKey KWYUFKZDYYNOTN-UHFFFAOYSA-M.

What documentation is provided?

Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.